|Dates||Before humanity - 2017 (killed by Castiel)|
|Episode(s)||12.10 Lily Sunder Has Some Regrets|
Ishim was an angel and former superior to Castiel. At some point in the late 19th century, Ishim was summoned to Earth by Lily Sunder. Taking an interest in Lily, Ishim shared all his knowledge and secrets of angels and Heaven with her, including Enochian magic. Ishim's infatuation with Lily soon led to obsession, forcing Lily to sever all ties with him and seek protection from another angel named Akobel.
Lily explains to Dean that she swore to herself that she would kill Ishim to avenge May's death, even if it meant burning her entire soul, but it didn't as she has a sliver of her soul left.
Ishim in Lore
Ishim are in actuality seen as a class of angel; the Ishim are said to be the angels that deal most closely with the affairs of man. They are said to be made of fire and snow and are described as "the beautiful souls of just men."